Question

2)a) The digits of a given two digit number are interchanged .Then the sum of the given number and the resulting number is always divisible by __________
b)The difference between them is always divisible by__________.

Explain the answer

Answer 1

the answer of the question
(a) the sum would be divisible by 11
(b) the difference would be divisible by 3

Answer 2

Answer:

(a) the sum would be divisible by 11

(b) the difference would be divisible by 3

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